Fastening mechanism



Hay 4 1926. C. H. HoY'r FASTENING MECHANISI original Filed July 2s, 1921severalj figures.

Y, machines andapparatus.' f

PatentedtMay 4, 1926;.

UNI-TED -f STAT cmmisnfnorfr, oF ,envnnz MASSACHUSETTS, Assisiroltrofiugiifgji) 535g ik Y MACHINERY oonromifrromor `rarrnasoiir,NEW-JERSEY, ,A o onPoRArIoN or NEW 'original application ined :niiy23,1921, semi naesaoes; iiivided land this appiicatibn med megas 1 17,1922.- seriaiivo. 601,594," i' s To allwhl'omi'itlmay concern: l Be itknown that 1I, CHARLES H. Hor'r, a

citizenof the United" States, residing at j ABeverly, inthe c'ountyofEssex and Statev of, Massachusetts, have invented certainliiia`provenients in Fastening Mechanism, of which ,the followingdescription, in conf` nection with the accompanying drawings,

is a specication, like Vreference r` characters Von the drawingsindicating like Vparts in' the This invention'relates to fasteningmecli-'anisnn and jislierein shownV as embodied iii 'fastening' mechanismVparticularly designedk for use in a machine for lasting the heel ends of-shoe'sdescribed and" claimed in 'myVv co- `pending application Ser. No.487,098,1iled July 23V, V1921, of wliich'this application is VaYdivision.y It will be recognized, however, that the invention is notlimited to use in machines of 'that particulartype but is of Y' generalapplicability to various kinds 'of '.*The invention provides infastening mechanism comprisinga holder or throatineinberrwhichApositions or guidesthe fasteningv p Y inwardly and outwardly over-theheel seat to s controlled 'as to 'be lmoved Vyieldingly ztowardthe'wor'kin response to the operative f movement ofthe tack drivingimeans and t retractive movement of theldriving means.A

' fonlly'vone 'of such mechanisms being herein 'shown as an illustrationof thepresent-inc vention 1for positioning Iniove- Such an* organizationmay have *vario-us' oloT VJects in-view, forI example 'to insure bettercontrol of 'thefast'eninghy positioning the:

holder closeto the workr when the fastening is driven or to'applypressure to thelwork* `through the holder, while aifording at othertimes Ysuiiicient"clearance between the hol-derv andthe work 'to permitotherop'erationsto l 'tack than is desirable.

A"he performed;v and -as applied to a heel seati' i lasting. machine, asherein shown, an ini-f 'Y shown and or fthe operation Aof the wipersprior to the# upper fastening operation and thereafter to j idriver/110.

fresa-unirme MEcHANrsii/L aon ma Combinaans fof paris, will :now be moreparticularly set forth-'hy reference to` Yiii theclaims. Y Inthedrawings, n i ,n v

Fig* "1 .15 @View partly/in elevation and *partlyV in vertical section,of fastening meclij -anism .embodying-the present' invention,

showing this mechanism inoperative rela- -v rtion tOother parts ofamacl'i-ineofthe type" l'described `iii copendriglafpplicati'on iugpa isview Sinaai tar-ig.1 sawing n the `part-s iii a different position; nsection 'through -fone n lnig.-` '3 `ls a vertical n of theitackthroatsor vholder-s detached, and Fig; 4 shows parts ofthe tack-holder inldisassembled, -relation.- v

the use ofthe invention as a part of *the organization ofthe/ machineshown 4in )my copending 'application a last awitht'he shoe materialsmounted/thereon is `'positioned upon a' work support (not shown) y and'the heel -end of the vshoefis embraced and. Y

the insole lafter the vvvi'pers haveffbeen 'partially retracted fromtheir innermost v`position over the-heel seat, the machine v@isprocvidedwith -a Iplurality offasteningmechf,A

YI:in-isms for driving lasting ytacks-in different locationsahoutitliiiey end ofvthe shoe,

ment7ahove thewipers lisa tack block 6 `provieh-id with one or morecylindrical -openings extending upwardly in parallel relation to the'directions --offmovement Vof @the ystack solo. lfF/orfasteninglthemargintofltheupper y driving means to serve las guidin':means f-.or' V Y' 'Lone-or more tackthroats -orho'l ers,-one`fof n'fsucfh 4"tack holders heing shown v.detached.in"

and "The-tack holderior` @throatV riieinloery comprsessa tube @adaptedito slide vlengthwise :the/opening in fthelloloick 6 i f land adapted.to neceiive-wfithingit a tack n.

At its lower end 4`xtlhezcack "holder i vvhichhave vcoinplement altack'receiviingren icesses and are provided Wi'th'r cylindrical hearingportions y16 -to turnl acornespimding' is provided with a .pair of tack.fingers 514 transverse bearingslS on the lower. end portion ofthe tubemember 8, the tack lingers b eing guided in their opening and closingl"movements between lugs 20 adjacent to the bearings. a To hold thetackl fingers normally closed, springs 22 are provided, as illustratedin Fig. 3. The tube 8 is provided with a slot 24 arranged to registerVwith a corresponding sl'otin the block 6 throughy which tacks are Vfedfrom a tack tube 26 leading from the usual tack separator. l

v .The tack driver l0 is carried by a driver bar 28 which ismovablelengthwise in a guide member 30, the driver bar being connectedat its upper end to anupwardly and downwardly movable driver head-32 thecon- .struction and operation of whichware more fully set forth in mycopending application.

' A spring 34 acts between the upper end of the driver b 'arj 28 and apin 36 onthe guide :member to assist in imparting upward or retractivemovement to the driver vbar. yIt

' will be understood that when, the member 32 l() to drive the tack. Y

is moved downwardly it imparts operative movement to the driver, bar andthe driver `The tack holder, is positioned initially with its tackfingers 14 suiciently elevated downwardlytoward the heel seat, for ex`.to be clear of the wipers 4 in their movements over the heel seat, asshown in Fig. l, and 1n the tack drivlng operation is moved ample totheposition illustrated in Fig. 2.

Forv the purpose of such control of the tack Y holder thereismountedinaguideway in the member 30 at vone side of the driver bar tor movementsin directions parallel to the direci .v `tions of movement of the driverbar a slide 38 Y which hasprojecting downwardly therefrom a plate 4()the lower endot which is bent into "position to enter aslot 42ormed inlone side I of the tube 8. The slide 38 is pressed downwardly by means ofa'spring 44 and a plungagainst the wall ofthe recess in the member 3()in which the slide 38 is mounted. The

er 46 which are mountedA within a socket in the slide, the plungerbearing upwardly slide 38 `has thereon a projection 48 `which extendsinto a Vslot formed in the driverv bar 28 and in the upward orretractive movef ment of the driver bar is engaged byv -a shoulder 50 onsaid bar. to-` impart upward;

movem ent-to'the slide 38 and thusY to move the tack holder upwardly totljieposition ile lustrated in Fig. ll. yl/Vhen thel driver bar receivesits operative movement'it releases the slide 38 andthe spring^44 actstol force the slide Vand the ktack holder downwardly with the driverbartoposition the tack f lingers' nearer tothe workin the driving of :thetack. In the construction hereinshown such downward movement ot the tacklholder is limited by engagement of a projection V52 on the slide-38witha shoulder 54 formed Von the member 30. The tack holder vis thus Y YLeashes moved yieldingly toward the` work, under control of the driverbar, by the action of the spring 44 and moved away from the work by'positive engagement of thecdriver bar Vwithft-he projection-48. Itfwill be underdriving'fastenings in the formottacksfit will bevunderstood thatthe invention is noty limited to the use of fasteningsof thisparticular character. Y

Having thus described the invention, what;

I claim as new and desire to secure by Letters Patent of the UnitedStates is:

l. Inmechanism of the class described, amember mounted for.reclprocatory movement to drivea fastening and then tofretract form thework,' a holdertor the fastening mounted for movement toward and fromthe work, a slide mounted independently ot said holder aty one side. ofthe driving member and connected to the holder yor'mov'ingit towardandjrom the work, Aand means for rendering said driving membereffective" in its retractive movement to operate said slide and therebymove said holder away from thc work. Y t l 2. In mechanism of the classdescribed, a

member mounted for reeiprocatory movement to drive a v)fasteningyandjthen to retract term the work, a holder for .theastening mounted formovement toward Yand from the c wor-k, a slide guided independently ofsaid holder and controlled bythe driving member, an operating connectionbetween said helder and slide, and a spring forpoperating .said slide tomovev the holder toward ,the

work when the'dri'ving member receivesits operative movement. f Y y 3.In mechanism of the class descr ibed,-a menifberwinounted forreciprocatory 'movement to drive al fastening and then to retract fromthe work, a -holder for the tasteningfmounted for movement toward andtrom the work, a slide mounted independently of said holder andconnected tothe holder for moving it toward and fromfthel work, meansfor rendering the driving mem-` ber effective to operate said slidetoretract the holder from the work, a spring for moving the holder towardthe 'work ywhen the driving member receives its operative movement, andmeans operative independently of the work to limit the movement ,of theholder toward the work.

4. In mechanismvot the class described, a

tackdriver, a tack holder comprising tackrecess therein, a memberseparate from they tack holdei movably mounted in said recess,

retaining lingers movable toward andlfrom` the work lengthwise of saiddriver, yia v,driver bar, a guide for said driver bar hav-ing a aconnection between said member and the tack'holder, and means forrendering the driver bar effective on said member to retract the tackholder Jfrom the work.

5. In mechanism of the class described, a tack block, a'tack holdercomprising tackV fingers and at'ubula'r support for said lingersslidable'inA the-tack block towardr and from the work, a reciprocatorytack driving member, and mechanism connected to Vsaid tubular supportand controlled by said tack driving member for moving the .tack holdertoward/and from'the work.

A 6. In mechanism of the `class described', atack driver, a tack holdermovable toward and from the work lengthwise of said driver,

a driverV bar, a guide. Jforv said driver bar having a 'recess therein,a slide movably mounted in said recess independently of the tack holder,a connection between said slide and the tack holder, a spring acting onsaid slide to move the tack holder rtoward `the work, and means on thedriver bar `for engaging the slide toA retract the tack holder from thework. Y f

7. In mechanism of the class described, a

throat member, a driver, said throat member being-movable in directionslengthwise of the driver toward and from the work, "a

Vspring mounted independently of the driver '8. In mechanism of theclass'described, a

throat member, a driver, said throat member being movable in directionslengthwise of the driver toward and from the work, a

reciprocatory driver bar'for operating the driver, V driverl barvhavii'i'gA a fsli'o-illCler thereon,land a memberlior controlling saidthroat member movably mounted indepeiid-z' v entlyk of the throat memberat the side ofy the driver-bar and arranged to be engaged by saidAshoulder to move the, throat .mem-

ber away rom'the work "asthewdriver is' retracted and to be releasedbysaid'shoulder d a to permit the throat member to. move-toward lthe workas the driver is operated.

9.Inmeclianisin of the class described, a tack liolder,a driver,-saidftack holder comprising arslotted tubular member mov- V.able invdirectionsv lengthwise `oi thedriver operating said driver, and a deviceengaging said tubular inem-ber in itsA slot andA con-v trolled by` saiddriver bar for moving said tack Vholder toward and .from thework.

10.l In mechanisml of the class described,

a tack holder, va driver-,said tack holder bef.

driver toward `and `from the work, a'y driver l bar for operating saiddriver, a slide ing movable infdirections lengthwise of the mountedindependently of the driverbar and tack holder and connected to saidtack holder, :said slidev being'arranged to be engaged by the driver barto withdraw the tack holder vfrom the work, and spring arranged tooperate said slide to move the tack holder toward the work. p

l1. In mechanism of the .class described,

l atack holder, a driver', saidgtack holder be. `ing movable indirections lengthwise of the driver toward and fromvthe work, a driverbar oroperatingsaid driver, a slide connected to Vsaid tack holder andhaving an abutment arranged Vto be lengaged lby a' towardand from.the'w'ork, afdriverv bar for a shoulder on the driver bar to withdrawthe `tack holder from the work, meansy p-roviding driver bar, a springoroperating'said slide tovmove the tack 'holder toward the work, ,and astopA forg'limiting movement of the slide under the action of saidspring.

In. testimony Vwhereor1v I have signed vmy c name to this specification.

`4CHARLES, H. HOYT.

, a guidewayfor'said slide at the side of the o v

